https://bugs.freedesktop.org/show_bug.cgi?id=38170
Summary: LG TV shows no signal attached to radeon via HDMI (and
is improperly detected)
Product: xorg
Version: 7.6
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/Radeon
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
When I attach my TV (LG 26LE5500) via HDMI, it is detected as '7" Goldstar
Company Inc.' device, but xrandr seems to list the correct resolutions.
Worse though is that the TV shows no signal, it even says "No Signal" on the
screen. This of course means I cannot attach my TV.
I don't know if it matters, but I'm using GPU switching via vgaswitcheroo.
Steps to reproduce:
0. Switch to radeon discrete graphics and restart X.
1. Attach TV via HDMI
2. Configure resolution
3. See no signal on the TV
Actual Result:
No signal/black screen on TV
Expected Result:
Desktop viewable on TV
Build Date & Platform:
I tried various Linux distributions, most of them with
xserver-xorg-video-radeon 6.14 and kernel 2.6.38, i.e. Ubuntu 10.10 and 11.04,
Linux Mint 10 and 11, Linux Mint DE, Fedora 15. All showed the same result.
Prod me if you need more information or if I can help debugging. I'm an
experienced programmer for that matter.
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